Selector-controller.



A. E. LUNDLL. SELECTOR CGNHOLHR.

APPLlcAUoN man im 3, wxs.

Patented Us?. t,

12. The sender 5 is thereupon connected by the cord finder 3 into operative relation to a selector' 13, then if connection is desired to station 2, to a second .selector 14 and linally to a final selector 15. The selecting operations take place in accordance with the called partys number recorded on the set of registers 7, which as shown, may include a thousands 21,`a hundreds 25, a tens 23, and a units register 27. These registers may be adjusted in any desired manner by turning each of the contact arms t'x any o' ten contact points (0) to (9"). i shown in the drawing the registers are adjusteffl to record the number 2101.

Vthe sender may be as shown, of the well rin counting relay type. It comprises a douille series ot counting relays operable in ,s oucnce by action of a stepping relay 16. "the latter is intermittently energized and di. .crgzed hy the intermittent action ot' a reverting impulse commutator switch on a power dri ven selector', the details of which, being Well known are not shown. The first ciiwmting relay in the series to be energized in each selecting operation, is determined by th point recorded on the register, which at t moment is in circuit with the contact 17 ci' the stepping relay 16. lVhen the proper uumlr/r of steps of the selector are taken, the Yo counting relays 18 and 19 operate; the former opening the controlling circuit to the selector and stopping it, and the latter closing a circuit for moving the sequence .switch G into its next resting position. This .1' ,ence switch is not required to have as many resting; positions other than normal {1 as there are registers in the set 7, but only as many as a fraction, one liialf,

:it them. lnly four registers are shown ai; il is a. sullicient number to fully illustrate application of the invention to a system ot any size.

in applying the invention to the system oli Four registers siiwn, the sequence switch l, would require but two otlnormal re positions, positions 2 and 4. In p s1- tion 2 the arm 29 of the thousands regisvr` ter 21 is connected at Contact 22 and the arm 'l? of the tens register 25, at contact 21. In position 4, the arm 29 of the hmidreds register is connected at contact 26 and the arm 29 of the units register 27 at con tact 28. These are but partial comiections ol the registers to the steppixngr relay con-A tact 17. They are completed, however, through successive contacts 31 and 112 of the sequence switch 4, occurring in its oil' normal resting positions 8 and 15, respectively.

The operation is as follows: Assuming the sender 5 to have been connecteijl by the cord finder 3 to the cord circuit 12 and the registers to be adjusted as shown for calling party, No. 2101, contact 33 is then closed to start the selecting operations. This corn- -of .relays 41,

pletes a circuit-ground, 33, 72, 4, batterywhich sends the cord finder sequence switch 4 out of normal 1, into position 2. The operator depresses also a key 73 and if switch is imposition 6 .a circuit is closedground, 72g, 74, 70, battery-for moving this switch into position 1. A circuitis noiv closed---ground, 73, 75, 76, 77, 4, batteryand sequence switch 4 is driven into posi= tion 8. While passing positions 4 to 6, there is closed a circuit-ground 34, 35, 6 battery-ivliich sends the sender se uence switch 6 out of normal 1, into position 2, wherein the connection between the sender and selector apparatus is made etective by the closing ci a contact 36, and whereupon the iii-st (say lhousands) selecting opcration takes place. The stepping relay lis now irtc'rniittent.,T energized in accordance with the wellglrnmrn reverse impulse system ol? selector control.

The first closure yof the stepping relay contact 17 results in the action of countingl relay E37, the first opening in the action o1 relay 2li, the second closing in the action ci' relay o9, the seciieid opening in the action of relay 41, the third closing in the action of relay 42, and the yhird and last opening in the action of relays 1d and 19. The circuit for relay 37 as follows: ground, 17, 31, 22,' 4 3, 44, 37, battery', for relay 39; ground, 17, 31, 4S, io, Lio, 211), battery, and for relay 42; ground, 17, 31, 22, 13, 45, 47, 4.2, battery.

The successivo openings of contact 17 resalt in the unshunting and action as stated 1S and 19, Relay 18 by opening the selector control circuit at contact 49, termina-tes the "thousands" selecting operation. "the countingr relays are for thc moment locked ir. circuits through con# toets 51A l and 5B of relays 37, and 42, 'respectively and sequence switch Contact 54. But the sequence switch 6 is immediately caused te alll me freni position 2 to 4 by the closing i inta-t of relay .19 of a, circnir----groei 6, battery; and in passing positions i the locking circuits ot' the countingr relays are opened at contact 34. The sender is thus restored for the next or "hundreds$7 selecting operation which now takes place. The hundreds register 25 having' been adiusted to point ,(1) and contact 26 being closed instead of 22, the lirst closure olI the stepping relay contact 17 results in the action of counting relay 39 instead of L7 as before, the circuit hein;r as follows: ground, 17, 31, 215, 56, 46, 3h, battery. ,ln this selecting operation therefore two closures and two openings of contact 17 take place. thereupon relays 18 and 19 act before, the former terminating the hundreds selector movement and the latter causing the sequence switch 6 to be moved out of position 4. The next, and a number ofsucceediiig selecting operations, might take vplace iii, say, positions (i, 8, etc.,`

therefore, the sequence switch (jconipletes its lirst cycle' and]` returns to normal l (l) again. In. passing positions l5 Ato 1, there is 1g closed a vcircii it .,ground 51T, 55, l, battery.-

wliich sends the sequei'ice.. swit'elrrl out off position. and into ifiaiid sequeiicevsivitch is sent on tonpositionfzagain by a second closiiigof circuitffjir'i'iiiind, 34 5, (3,'battery. The first (or -.l'eri`s Aof the second-series of selectingoperations now-takes place. As the. ften's register is' adjusted to the pointand contacts 3:5 and 2l .are closedythe first closureoi" tl'iestepping relay contact 17 in -thisselect-ing operation eiiergizesthe '/,ero

counting relay l2, the. circuit being as follows: ground, 1 7, ,252, 24j, 5l), 42, battery, and the first opening causes relays 1S and ll) to act as before. Sequence switch G is sent on to piisiti'on -l again and the lastor iinits" selecting operation takes place.. Iii this` operation, the firstv closure of the stepping relay contact l ,ve neigizcs counting relay 5.9,- the circuit being as follows; ground, .17, 3 2, 2S), so (il, 4 (3, lhbattery, and two closures and two openings occur. This completes the several selecting oi'ieralioiis necessaryy` for the as-' sunied call No. 2101, in the siinplifieil'systeni of the drawings. It will he understood however, that more thanthree (usually teil) pairs of' counting' relays may he employed -so to ,provide for points 25 to 9, as well as 'O to 2 of 'the registers. As previously stated also, a greater number than fou-r selecting 0 operations may be proyidedor. Obviously libel-selecting oi'ierations, in accordance with -theorganization of sequence suitcheswlis` olosed,-niay if desired he divided into more Vthan two series, and caused to take place 15 in successive cycles of the sender sequence 'itch (5,-occurring vrespectirely' insu'crcsA sive positions of a single. Vc Vcle ol' i. -ord inder sequence switch'l. If connect-ion 'is desired to station 2'., selectorl lil will have to be set onto a trunk leading to'connect-or l5',

and then this connector will he hy means of tii'o series'of selective impulses.

iipposing that the number of stat-ion 2' is 101, theoperatoi/ .adjusts registers 21,' 331 und 27 accordingly, and deifiresscs a keyv S() instead of key 73 because the key SO controls the niovemei'it of selector 13 onto con- A tacls in which' trunks -leai'ling to connector i113 te'rn'iina'te. A circuit is closed-"Q0, 3l,

l Wil-70,'liatteryfer driving the register controller out of its last resting;r position 1) into position 6. Sequence switch l is driven out of position '2 into by a circuitclose-d from ground tliro'ugh 80, S2. '76, 77, 4, to

'S5 bgttery. I

into position l-liy a registers with the sender.

said registers with the's'en'deri of position Z into positioirl, relays 39, 4:1, qu'

4L', lf) and 18 (register heiiigset on contact l) become .deiiiergizedg relays '42, 1 9 and le, however,-becoiiie again energized in position of this'seiiuence switch, ground being .supplied. instead of through S3, 84., ,'18, 519,1 2 to battery." Relay lb maintains the controlling' circuit open zit-contact 49,- and as soon as sequence switch C reaches position :l itiv'ill beidriven circuit-freund, 87,:6, so

(i, battery. d

. Connector l5 isnow' set iii accord-ance'A with the'adjustinent of registjei's and 2T in the saine mannen as aboi'e described in connection with connector sii-'itch-I.- 81:3 It'ivill he thus seen that altl'ioughregiste'r 25 was in anactiiat-ed positionll), selector l5 was not set A1 in'deif tlie"control thereof, the effective association oftliis register. with the sender' being;r prevented by the ope 'ation 90 of. the class register controller 70.

lVliat clainied is: i i 1.v In a selector controller, a plurality of ref.:isters,l a sender, means' -or siiccesshfely associatirngr said registers with said sender, 95. and incansincluding a sequence switch for vpreventing; the eil'cct'ive association of-oi'ie of said registers with 'the sender.

". In :i. selector controllei.,t iplrality of registers and a seiiderf forH'controlling a100- plurality of selective opei'atiii'sfand 4means iiide,iondent of said-seiidenande i'stefrsQ-for ileteru'iiniiig the niimlier' o -seleeti vations to lie-effected.

- over;

plurality of; actuated"registers, iieziii1 s .for successively associating `said registers vVith.. the sender, and independentlmeans fprev venting the etl'ectivegassoeiation'tofl all the'` 4. In a selector controller, a5- plurality of` registers, a sende-r7 means including a sequence switch. operating in siicceSSi ve-CycleS to Vsuccessirely associate said registers With said sender, and ini'lependentmeans for -pre- V1U venting the effective as sr'iciati'inof; one of 5. In a. selector*controller; Aa ip luralty'of-' series of rcgistersa sender, iiica'ns including a. sequence switch operating.in successive`12 cycles, to successivelyassociatethe registers in one series afteranother with said sender,

.aiidindependent means for preventing the effective association 'of a serie-'s with the sender.

(3. In a selector controller, apluriility of series of registers, a sender, 'asequence'- sivitchoperating inserer-al cycles and 'in each cycle associating thel registersof each.

register` of one IZB series successively with said sender,gand ,iu-

contact 54.45, l

dependent means for preventing the effective .association of the last register of the first series wit/h/thg,A sender.

, 7. In a selctor'controller, a' plurality of.

registersg/'a. sender, means including a se quence witch operating `im successive cycles,

Y to sul essively 'conneetesai'ft registers to said series of registers, a sender, and means inl registers in Yone sender, and` means controlled byl'saidsender for operating said sequence switch.

8. In. a selector controllexa.'pluraliyfovf cluding a-sequence switch operating in successive cycles', to successively connect the ,seriesr after another to said sender."j`"l 9. InAa.selectorcontrolle1-, a plurality of series of registers, vva sender,- a sequence switch operating inseveral 4cycles and in Y each cycle switching the registers of each series successively into partial connectionsto said sender, and means acting during sucf cessive cycles of said sequence switch .to complete` ',the partial connections in one series of/iegisters after another.-

I0. In a selector controller, -a plurality of registers, a sender, two sequence switches,

one moving insuccessive cyclesY while the other moves in a single cycle to successively connect said registers to said sender, and

means controlled by -saidsender for operating said sequence switch moving in succesf l1. In a s'clectorcontroller, a-plurality ofseries of registers,a sender, means including a sequence switch operating in successive "cycles, to successively connect the registers in switching the registers of eachseri'es successively in tofpartial connections to saifd sender means acting during. successive cycles o said sequence switch to complete `the partialy `connections invone-"seriesfof registersfafter another, and means controlled by said sender for operating said sequence switch.

In witness whereof, I hereunto 'subscribe my name this 31st day of December A. D.,

' ALBEN EQLUNDELL.- 

